About Masonry Drill Bits
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Drill Bit Decimal Size Equivalents
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About Drill Bits
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Inch Size Depth-Limiting Drill Bit Stop Collars
Ensure identical hole depths every time. Position the collar on your bit and tighten the set screw.
For technical drawings and 3-D models, click on a part number.
For Drill Bit | |||||||
|---|---|---|---|---|---|---|---|
| Size | Size Decimal Equivalent | Overall Lg. | OD | Hex Key Size for Set Screw | Material | Each | |
| 1/16" | 0.0625" | 1/2" | 3/8" | 3/32" | Steel | 00000000 | 00000 |
| 5/64" | 0.0781" | 1/2" | 3/8" | 3/32" | Steel | 00000000 | 0000 |
| 3/32" | 0.0938" | 1/2" | 3/8" | 3/32" | Steel | 00000000 | 0000 |
| 7/64" | 0.1094" | 1/2" | 3/8" | 3/32" | Steel | 00000000 | 0000 |
| 1/8" | 0.1250" | 1/2" | 3/8" | 3/32" | Steel | 00000000 | 0000 |
| 9/64" | 0.1406" | 1/2" | 7/16" | 3/32" | Steel | 00000000 | 0000 |
| 5/32" | 0.1563" | 1/2" | 7/16" | 3/32" | Steel | 00000000 | 0000 |
| 11/64" | 0.1719" | 1/2" | 7/16" | 3/32" | Steel | 00000000 | 0000 |
| 3/16" | 0.1875" | 1/2" | 7/16" | 3/32" | Steel | 00000000 | 0000 |
| 13/64" | 0.2031" | 1/2" | 1/2" | 3/32" | Steel | 00000000 | 0000 |
| 7/32" | 0.2188" | 1/2" | 1/2" | 3/32" | Steel | 00000000 | 0000 |
| 15/64" | 0.2344" | 1/2" | 1/2" | 3/32" | Steel | 00000000 | 0000 |
| 1/4" | 0.2500" | 1/2" | 1/2" | 3/32" | Steel | 00000000 | 0000 |
| 17/64" | 0.2656" | 5/8" | 5/8" | 3/32" | Steel | 00000000 | 0000 |
| 9/32" | 0.2813" | 5/8" | 5/8" | 3/32" | Steel | 00000000 | 0000 |
| 19/64" | 0.2969" | 5/8" | 5/8" | 3/32" | Steel | 00000000 | 0000 |
| 5/16" | 0.3125" | 5/8" | 5/8" | 3/32" | Steel | 00000000 | 0000 |
| 21/64" | 0.3281" | 3/4" | 3/4" | 3/32" | Steel | 00000000 | 0000 |
| 11/32" | 0.3438" | 3/4" | 3/4" | 3/32" | Steel | 00000000 | 0000 |
| 23/64" | 0.3594" | 3/4" | 3/4" | 3/32" | Steel | 00000000 | 0000 |
| 3/8" | 0.3750" | 7/8" | 7/8" | 3/32" | Steel | 00000000 | 0000 |
| 25/64" | 0.3906" | 7/8" | 7/8" | 1/8" | Steel | 00000000 | 0000 |
| 13/32" | 0.4063" | 7/8" | 7/8" | 1/8" | Steel | 00000000 | 0000 |
| 27/64" | 0.4219" | 7/8" | 7/8" | 1/8" | Steel | 00000000 | 0000 |
| 7/16" | 0.4375" | 7/8" | 7/8" | 1/8" | Steel | 00000000 | 0000 |
| 29/64" | 0.4531" | 7/8" | 7/8" | 1/8" | Steel | 00000000 | 0000 |
| 15/32" | 0.4688" | 7/8" | 7/8" | 1/8" | Steel | 00000000 | 0000 |
| 31/64" | 0.4844" | 7/8" | 7/8" | 1/8" | Steel | 00000000 | 0000 |
| 1/2" | 0.5000" | 7/8" | 7/8" | 1/8" | Steel | 00000000 | 0000 |
| 33/64" | 0.5156" | 1" | 1" | 1/8" | Steel | 00000000 | 00000 |
| 17/32" | 0.5313" | 1" | 1" | 1/8" | Steel | 00000000 | 00000 |
| 9/16" | 0.5625" | 1" | 1" | 1/8" | Steel | 00000000 | 00000 |
| 37/64" | 0.5781" | 1" | 1" | 1/8" | Steel | 00000000 | 00000 |
| 19/32" | 0.5938" | 1" | 1" | 5/32" | Steel | 00000000 | 00000 |
| 5/8" | 0.6250" | 1 1/8" | 1 1/8" | 5/32" | Steel | 00000000 | 00000 |
| 21/32" | 0.6563" | 1 1/8" | 1 1/8" | 5/32" | Steel | 00000000 | 00000 |
| 11/16" | 0.6875" | 1 1/8" | 1 1/8" | 5/32" | Steel | 00000000 | 00000 |
| 45/64" | 0.7031" | 1 1/8" | 1 1/8" | 5/32" | Steel | 00000000 | 00000 |
| 23/32" | 0.7188" | 1 1/8" | 1 1/8" | 5/32" | Steel | 00000000 | 00000 |
| 47/64" | 0.7344" | 1 1/8" | 1 1/8" | 5/32" | Steel | 00000000 | 00000 |
| 3/4" | 0.7500" | 1 1/4" | 1 1/4" | 5/32" | Steel | 00000000 | 00000 |
| 51/64" | 0.7969" | 1 1/4" | 1 1/4" | 5/32" | Steel | 00000000 | 00000 |
| 13/16" | 0.8125" | 1 3/8" | 1 3/8" | 5/32" | Steel | 00000000 | 00000 |
| 7/8" | 0.8750" | 1 3/8" | 1 3/8" | 5/32" | Steel | 00000000 | 00000 |
| 15/16" | 0.9375" | 1 1/2" | 1 1/2" | 5/32" | Steel | 00000000 | 00000 |
| 31/32" | 0.9688" | 1 1/2" | 1 1/2" | 5/32" | Steel | 00000000 | 00000 |
| 1" | 1.0000" | 1 1/2" | 1 1/2" | 3/16" | Steel | 00000000 | 00000 |
Wire Gauge Size Depth-Limiting Drill Bit Stop Collars
Ensure identical hole depths every time. Position the collar on your bit and tighten the set screw.
For technical drawings and 3-D models, click on a part number.
For Drill Bit | |||||||
|---|---|---|---|---|---|---|---|
| Size | Size Decimal Equivalent | Overall Lg. | OD | Hex Key Size for Set Screw | Material | Each | |
| 52 ga | 0.0635" | 1/2" | 3/8" | 3/32" | Steel | 00000000 | 00000 |
| 51 ga | 0.0670" | 1/2" | 3/8" | 3/32" | Steel | 00000000 | 0000 |
| 50 ga | 0.0700" | 1/2" | 3/8" | 3/32" | Steel | 00000000 | 0000 |
| 49 ga | 0.0730" | 1/2" | 3/8" | 3/32" | Steel | 00000000 | 0000 |
| 48 ga | 0.0760" | 1/2" | 3/8" | 3/32" | Steel | 00000000 | 0000 |
| 47 ga | 0.0785" | 1/2" | 3/8" | 3/32" | Steel | 00000000 | 0000 |
| 46 ga | 0.0810" | 1/2" | 3/8" | 3/32" | Steel | 00000000 | 0000 |
| 45 ga | 0.0820" | 1/2" | 3/8" | 3/32" | Steel | 00000000 | 0000 |
| 44 ga | 0.0860" | 1/2" | 3/8" | 3/32" | Steel | 00000000 | 0000 |
| 43 ga | 0.0890" | 1/2" | 3/8" | 3/32" | Steel | 00000000 | 0000 |
| 42 ga | 0.0935" | 1/2" | 3/8" | 3/32" | Steel | 00000000 | 0000 |
| 41 ga | 0.0960" | 1/2" | 3/8" | 3/32" | Steel | 00000000 | 0000 |
| 40 ga | 0.0980" | 1/2" | 3/8" | 3/32" | Steel | 00000000 | 0000 |
| 39 ga | 0.0995" | 1/2" | 3/8" | 3/32" | Steel | 00000000 | 0000 |
| 38 ga | 0.1015" | 1/2" | 3/8" | 3/32" | Steel | 00000000 | 0000 |
| 37 ga | 0.1040" | 1/2" | 3/8" | 3/32" | Steel | 00000000 | 0000 |
| 36 ga | 0.1065" | 1/2" | 3/8" | 3/32" | Steel | 00000000 | 0000 |
| 35 ga | 0.1100" | 1/2" | 3/8" | 3/32" | Steel | 00000000 | 0000 |
| 34 ga | 0.1110" | 1/2" | 3/8" | 3/32" | Steel | 00000000 | 0000 |
| 33 ga | 0.1130" | 1/2" | 3/8" | 3/32" | Steel | 00000000 | 0000 |
| 32 ga | 0.1160" | 1/2" | 3/8" | 3/32" | Steel | 00000000 | 0000 |
| 31 ga | 0.1200" | 1/2" | 3/8" | 3/32" | Steel | 00000000 | 0000 |
| 30 ga | 0.1285" | 1/2" | 7/16" | 3/32" | Steel | 00000000 | 0000 |
| 29 ga | 0.1360" | 1/2" | 7/16" | 3/32" | Steel | 00000000 | 0000 |
| 28 ga | 0.1405" | 1/2" | 7/16" | 3/32" | Steel | 00000000 | 0000 |
| 27 ga | 0.1440" | 1/2" | 7/16" | 3/32" | Steel | 00000000 | 0000 |
| 26 ga | 0.1470" | 1/2" | 7/16" | 3/32" | Steel | 00000000 | 0000 |
| 25 ga | 0.1495" | 1/2" | 7/16" | 3/32" | Steel | 00000000 | 0000 |
| 24 ga | 0.1520" | 1/2" | 7/16" | 3/32" | Steel | 00000000 | 0000 |
| 23 ga | 0.1540" | 1/2" | 7/16" | 3/32" | Steel | 00000000 | 0000 |
| 22 ga | 0.1570" | 1/2" | 7/16" | 3/32" | Steel | 00000000 | 0000 |
| 21 ga | 0.1590" | 1/2" | 7/16" | 3/32" | Steel | 00000000 | 0000 |
| 20 ga | 0.1610" | 1/2" | 7/16" | 3/32" | Steel | 00000000 | 0000 |
| 19 ga | 0.1660" | 1/2" | 7/16" | 3/32" | Steel | 00000000 | 0000 |
| 18 ga | 0.1695" | 1/2" | 7/16" | 3/32" | Steel | 00000000 | 0000 |
| 17 ga | 0.1730" | 1/2" | 7/16" | 3/32" | Steel | 00000000 | 0000 |
| 16 ga | 0.1770" | 1/2" | 7/16" | 3/32" | Steel | 00000000 | 0000 |
| 15 ga | 0.1800" | 1/2" | 7/16" | 3/32" | Steel | 00000000 | 0000 |
| 14 ga | 0.1820" | 1/2" | 7/16" | 3/32" | Steel | 00000000 | 0000 |
| 13 ga | 0.1850" | 1/2" | 7/16" | 3/32" | Steel | 00000000 | 0000 |
| 12 ga | 0.1890" | 1/2" | 1/2" | 3/32" | Steel | 00000000 | 0000 |
| 11 ga | 0.1910" | 1/2" | 1/2" | 3/32" | Steel | 00000000 | 0000 |
| 10 ga | 0.1935" | 1/2" | 1/2" | 3/32" | Steel | 00000000 | 0000 |
| 9 ga | 0.1960" | 1/2" | 1/2" | 3/32" | Steel | 00000000 | 0000 |
| 8 ga | 0.1990" | 1/2" | 1/2" | 3/32" | Steel | 00000000 | 0000 |
| 7 ga | 0.2010" | 1/2" | 1/2" | 3/32" | Steel | 00000000 | 0000 |
| 6 ga | 0.2040" | 1/2" | 1/2" | 3/32" | Steel | 00000000 | 0000 |
| 5 ga | 0.2055" | 1/2" | 1/2" | 3/32" | Steel | 00000000 | 0000 |
| 4 ga | 0.2090" | 1/2" | 1/2" | 3/32" | Steel | 00000000 | 0000 |
| 3 ga | 0.2130" | 1/2" | 1/2" | 3/32" | Steel | 00000000 | 0000 |
| 2 ga | 0.2210" | 1/2" | 1/2" | 3/32" | Steel | 00000000 | 0000 |
| 1 ga | 0.2280" | 1/2" | 1/2" | 3/32" | Steel | 00000000 | 0000 |
Metric Size Depth-Limiting Drill Bit Stop Collars
Ensure identical hole depths every time. Position the collar on your bit and tighten the set screw.
For technical drawings and 3-D models, click on a part number.
For Drill Bit | |||||||
|---|---|---|---|---|---|---|---|
| Size, mm | Size Decimal Equivalent | Overall Lg. | OD | Hex Key Size for Set Screw | Material | Each | |
| 2.0 | 0.0787" | 1/2" | 3/8" | 3/32" | Steel | 00000000 | 00000 |
| 3.0 | 0.1181" | 1/2" | 3/8" | 3/32" | Steel | 00000000 | 0000 |
| 4.0 | 0.1575" | 1/2" | 7/16" | 3/32" | Steel | 00000000 | 0000 |
| 5.0 | 0.1968" | 1/2" | 1/2" | 3/32" | Steel | 00000000 | 0000 |
| 6.0 | 0.2362" | 1/2" | 1/2" | 3/32" | Steel | 00000000 | 0000 |
| 7.0 | 0.2756" | 5/8" | 5/8" | 3/32" | Steel | 00000000 | 0000 |
| 7.75 | 0.3051" | 5/8" | 5/8" | 3/32" | Steel | 00000000 | 0000 |
| 8.0 | 0.3150" | 3/4" | 3/4" | 3/32" | Steel | 00000000 | 0000 |
| 8.1 | 0.3189" | 3/4" | 3/4" | 3/32" | Steel | 00000000 | 0000 |
| 8.5 | 0.3346" | 3/4" | 3/4" | 3/32" | Steel | 00000000 | 0000 |
| 9.0 | 0.3543" | 3/4" | 3/4" | 3/32" | Steel | 00000000 | 0000 |
| 9.5 | 0.3740" | 3/4" | 3/4" | 3/32" | Steel | 00000000 | 0000 |
| 9.8 | 0.3858" | 7/8" | 7/8" | 1/8" | Steel | 00000000 | 0000 |
| 10.0 | 0.3937" | 7/8" | 7/8" | 1/8" | Steel | 00000000 | 0000 |
| 11.0 | 0.4331" | 7/8" | 7/8" | 1/8" | Steel | 00000000 | 0000 |
| 12.0 | 0.4724" | 7/8" | 7/8" | 1/8" | Steel | 00000000 | 0000 |
| 13.0 | 0.5118" | 1" | 1" | 1/8" | Steel | 00000000 | 00000 |
| 15.0 | 0.5905" | 1" | 1" | 5/32" | Steel | 00000000 | 00000 |
| 20.0 | 0.7874" | 1 1/4" | 1 1/4" | 5/32" | Steel | 00000000 | 00000 |
Letter Size Depth-Limiting Drill Bit Stop Collars
Ensure identical hole depths every time. Position the collar on your bit and tighten the set screw.
For technical drawings and 3-D models, click on a part number.
For Drill Bit | |||||||
|---|---|---|---|---|---|---|---|
| Size | Size Decimal Equivalent | Overall Lg. | OD | Hex Key Size for Set Screw | Material | Each | |
| A | 0.2340" | 1/2" | 1/2" | 3/32" | Steel | 00000000 | 00000 |
| B | 0.2380" | 1/2" | 1/2" | 3/32" | Steel | 00000000 | 0000 |
| C | 0.2420" | 1/2" | 1/2" | 3/32" | Steel | 00000000 | 0000 |
| D | 0.2460" | 1/2" | 1/2" | 3/32" | Steel | 00000000 | 0000 |
| F | 0.2570" | 5/8" | 5/8" | 3/32" | Steel | 00000000 | 0000 |
| G | 0.2610" | 5/8" | 5/8" | 3/32" | Steel | 00000000 | 0000 |
| H | 0.2660" | 5/8" | 5/8" | 3/32" | Steel | 00000000 | 0000 |
| I | 0.2720" | 5/8" | 5/8" | 3/32" | Steel | 00000000 | 0000 |
| J | 0.2770" | 5/8" | 5/8" | 3/32" | Steel | 00000000 | 0000 |
| K | 0.2810" | 5/8" | 5/8" | 3/32" | Steel | 00000000 | 0000 |
| L | 0.2900" | 5/8" | 5/8" | 3/32" | Steel | 00000000 | 0000 |
| M | 0.2950" | 5/8" | 5/8" | 3/32" | Steel | 00000000 | 0000 |
| N | 0.3020" | 5/8" | 5/8" | 3/32" | Steel | 00000000 | 0000 |
| O | 0.3160" | 3/4" | 3/4" | 3/32" | Steel | 00000000 | 0000 |
| P | 0.3230" | 3/4" | 3/4" | 3/32" | Steel | 00000000 | 0000 |
| Q | 0.3320" | 3/4" | 3/4" | 3/32" | Steel | 00000000 | 0000 |
| R | 0.3390" | 3/4" | 3/4" | 3/32" | Steel | 00000000 | 0000 |
| S | 0.3480" | 3/4" | 3/4" | 3/32" | Steel | 00000000 | 0000 |
| T | 0.3580" | 3/4" | 3/4" | 3/32" | Steel | 00000000 | 0000 |
| U | 0.3680" | 3/4" | 3/4" | 3/32" | Steel | 00000000 | 0000 |
| V | 0.3770" | 7/8" | 7/8" | 1/8" | Steel | 00000000 | 0000 |
| W | 0.3860" | 7/8" | 7/8" | 1/8" | Steel | 00000000 | 0000 |
| X | 0.3970" | 7/8" | 7/8" | 1/8" | Steel | 00000000 | 0000 |
| Y | 0.4040" | 7/8" | 7/8" | 1/8" | Steel | 00000000 | 0000 |
| Z | 0.4130" | 7/8" | 7/8" | 1/8" | Steel | 00000000 | 0000 |
Depth-Limiting Drill Bit Stop Collar Sets
Ensure identical hole depths every time. Position the collar on your bit and tighten the set screw.
For technical drawings and 3-D models, click on a part number.
Masonry Drill Bits for Anchor Installation
SDS-Plus Shank
A built-in stop ensures repeatable drilling depths for installing drop-in anchors. The SDS-Plus shank has two deep slots and two shallow slots for use with SDS-Plus-drive rotary hammers. These bits cannot be used with SDS-Max-drive rotary hammers.
For technical drawings and 3-D models, click on a part number.
| Drill Bit Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Shank Type | Point Style | Specifications Met | For Use On | Each | |
Inch | |||||||||
|---|---|---|---|---|---|---|---|---|---|
Uncoated Carbide-Tipped Steel | |||||||||
| 1/4" | 0.25" | 4 7/8" | 13/16" | SDS Plus | Standard | ANSI B212.15 | Masonry, Concrete | 000000 | 000000 |
| 3/8" | 0.375" | 4 3/4" | 11/16" | SDS Plus | Standard | ANSI B212.15 | Masonry, Concrete | 000000 | 00000 |
| 3/8" | 0.375" | 5 1/8" | 1 1/16" | SDS Plus | Standard | ANSI B212.15 | Masonry, Concrete | 000000 | 00000 |
| 1/2" | 0.5" | 4 7/8" | 13/16" | SDS Plus | Standard | ANSI B212.15 | Masonry, Concrete | 000000 | 00000 |
| 1/2" | 0.5" | 5 3/4" | 1 11/16" | SDS Plus | Standard | ANSI B212.15 | Masonry, Concrete | 000000 | 00000 |
| 5/8" | 0.625" | 5 1/4" | 1 3/16" | SDS Plus | Standard | ANSI B212.15 | Masonry, Concrete | 000000 | 00000 |
| 5/8" | 0.625" | 6 1/8" | 2 1/16" | SDS Plus | Standard | ANSI B212.15 | Masonry, Concrete | 000000 | 00000 |
Push-Button Milling Machine Depth Stops
Install these stops on the quill of a milling machine or drill press to set machining or drilling depth. Depth can be set in one of two ways—by pushing the button and sliding the stop or by turning the nut. Also known as quill stops.
Overall | ||||||
|---|---|---|---|---|---|---|
| Thread Size  | Adjustment Increments | Material | Ht. | Dia. | Each | |
| 1/2"-20 | 0.001" | Steel | 1 7/16" | 1 1/2" | 0000000 | 000000 |